Chocolate Dipped Cinnamon Marshmallows and Perfect Hot Chocolate

INGREDIENTS

1 cup

cold water, divided

2 1/4

-ounce packages unflavored gelatin

2 cups

granulated sugar

2/3 cup

corn syrup

fine sea salt

2 tsp

pure vanilla extract

1 tsp

ground cinnamon

Powdered sugar, for dusting

1 cup

semisweet chocolate chips

1/3 cup

gingersnap (or graham cracker) cookie crumbs

2 tbsp

semisweet chocolate chips

1 1/2 tbsp

cocoa powder

1 1/2 cups

milk

2 tbsp

granulated sugar

1 pinch

salt